baffd052b0
This doesn't support -structurizecfg-skip-uniform-regions since that would require porting LegacyDivergenceAnalysis. The NPM doesn't support adding a non-analysis pass as a dependency of another, so I had to add -lowerswitch to some tests or pin them to the legacy PM. This is the only RegionPass in tree, so I simply copied the logic for finding all Regions from the legacy PM's RGManager into StructurizeCFG::run(). Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D89026
70 lines
2.2 KiB
LLVM
70 lines
2.2 KiB
LLVM
; RUN: opt -S -structurizecfg %s -o - | FileCheck %s
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; RUN: opt -S -passes=structurizecfg %s -o - | FileCheck %s
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define void @main(float addrspace(1)* %out) {
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; CHECK: main_body:
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; CHECK: br label %LOOP.outer
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main_body:
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br label %LOOP.outer
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; CHECK: LOOP.outer:
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; CHECK: br label %LOOP
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LOOP.outer: ; preds = %ENDIF28, %main_body
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%temp8.0.ph = phi float [ 0.000000e+00, %main_body ], [ %tmp35, %ENDIF28 ]
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%temp4.0.ph = phi i32 [ 0, %main_body ], [ %tmp20, %ENDIF28 ]
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br label %LOOP
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; CHECK: LOOP:
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; br i1 %{{[0-9]+}}, label %ENDIF, label %Flow
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LOOP: ; preds = %IF29, %LOOP.outer
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%temp4.0 = phi i32 [ %temp4.0.ph, %LOOP.outer ], [ %tmp20, %IF29 ]
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%tmp20 = add i32 %temp4.0, 1
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%tmp22 = icmp sgt i32 %tmp20, 3
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br i1 %tmp22, label %ENDLOOP, label %ENDIF
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; CHECK: Flow3
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; CHECK: br i1 %{{[0-9]+}}, label %ENDLOOP, label %LOOP.outer
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; CHECK: ENDLOOP:
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; CHECK: ret void
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ENDLOOP: ; preds = %ENDIF28, %IF29, %LOOP
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%temp8.1 = phi float [ %temp8.0.ph, %LOOP ], [ %temp8.0.ph, %IF29 ], [ %tmp35, %ENDIF28 ]
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%tmp23 = icmp eq i32 %tmp20, 3
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%.45 = select i1 %tmp23, float 0.000000e+00, float 1.000000e+00
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store float %.45, float addrspace(1)* %out
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ret void
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; CHECK: ENDIF:
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; CHECK: br i1 %tmp31, label %IF29, label %Flow1
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ENDIF: ; preds = %LOOP
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%tmp31 = icmp sgt i32 %tmp20, 1
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br i1 %tmp31, label %IF29, label %ENDIF28
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; CHECK: Flow:
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; CHECK: br i1 %{{[0-9]+}}, label %Flow2, label %LOOP
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; CHECK: IF29:
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; CHECK: br label %Flow1
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IF29: ; preds = %ENDIF
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%tmp32 = icmp sgt i32 %tmp20, 2
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br i1 %tmp32, label %ENDLOOP, label %LOOP
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; CHECK: Flow1:
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; CHECK: br label %Flow
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; CHECK: Flow2:
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; CHECK: br i1 %{{[0-9]+}}, label %ENDIF28, label %Flow3
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; CHECK: ENDIF28:
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; CHECK: br label %Flow3
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ENDIF28: ; preds = %ENDIF
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%tmp35 = fadd float %temp8.0.ph, 1.0
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%tmp36 = icmp sgt i32 %tmp20, 2
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br i1 %tmp36, label %ENDLOOP, label %LOOP.outer
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}
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attributes #0 = { "enable-no-nans-fp-math"="true" "unsafe-fp-math"="true" }
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attributes #1 = { nounwind readnone }
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attributes #2 = { readnone }
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